in service/sdk_validator/resdb_validator/transaction.py [0:0]
def from_db(cls, resdb, tx_dict_list):
"""Helper method that reconstructs a transaction dict that was returned
from the database. It checks what asset_id to retrieve, retrieves the
asset from the asset table and reconstructs the transaction.
Args:
resdb (:class:`~resdb_validator.tendermint.ResDB`): An instance
of ResDB used to perform database queries.
tx_dict_list (:list:`dict` or :obj:`dict`): The transaction dict or
list of transaction dict as returned from the database.
Returns:
:class:`~Transaction`
"""
return_list = True
if isinstance(tx_dict_list, dict):
tx_dict_list = [tx_dict_list]
return_list = False
tx_map = {}
tx_ids = []
for tx in tx_dict_list:
tx.update({'metadata': None})
tx_map[tx['id']] = tx
tx_ids.append(tx['id'])
assets = list(resdb.get_assets(tx_ids))
for asset in assets:
if asset is not None:
tx = tx_map[asset['id']]
del asset['id']
tx['asset'] = asset
tx_ids = list(tx_map.keys())
metadata_list = list(resdb.get_metadata(tx_ids))
for metadata in metadata_list:
tx = tx_map[metadata['id']]
tx.update({'metadata': metadata.get('metadata')})
if return_list:
tx_list = []
for tx_id, tx in tx_map.items():
tx_list.append(cls.from_dict(tx))
return tx_list
else:
tx = list(tx_map.values())[0]
return cls.from_dict(tx)